Portal 2 Crashes on Startup?

[Aprilinator]

I've had portal 2 for quite a while, and never had problems with it before now.

When I start it up, everything seems to work fine until I get to the loading screen just before the main menu, and it crashes to the desktop.

I've tried updating drivers and verifying the game cache and still have the same problem.

Anyone know how I can fix this (I don't really want to re-download it if I can avoid it as I don't get a lot of bandwidth)

Thanks!

[notNSANE]

also happens to me.

[DiamondDogFaith]

same here I went to play it, it gets as far as the title screen than crashes never happened before to me till today, I'm re-installing it.

[Ozymandis]

same!

[Ozymandis]

just validated local files and it works now :yay:

[Moulders]

I had a similar issue, Mine was because I had mumble running in the background -.-

[Delpod]

try "-autoconfig" without "" as a startup parameter

[J_dawg_19]

I bought Portal 2 and I launched it immediately in an anxious flurry to play this wonderful game. Upon launching the game, it crashed. I did a lot of research on how to fix it and I used this page but to no avail. After a long night at about 4 AM last night I decided to flash my bios. It failed and my computer was rendered a paperweight. That being said I was finally able to fix it at the cost of many things on my hard drive, including my windows office programs and such. I reinstalled Windows 7, Steam, and Portal 2. After 36 odd hours of trying to fix it, I finally did it. I sacrificed over $100 worth of programs to play this game (which I've already played and beaten) that only costed me $5... Yeah, I think I might have a mental issue but now I can play PORTAL 2!

[INFINITY]

same problem here.
Maybe is the itime to say goodbye to XP...

[ASNW]

the same, can't solve for few days, wondering what should do

[small victorian child]

Same Prob, an earlier response said validate game files. im gonna try that
ive noticed that it stopeed working right after the steam update. that tmight be a problem too

validaing steam files worked!

[BlistovMHz]

FYI - Windows 8 DX10/11 is installed by default, and includes most of the DX9 libs, but is missing some stuff. Manually install DX9 to get Portal 2 and Crysis 3 working.
http://www.microsoft.com/en-us/download/details.aspx?id=35

[ihumpher]

BlistovMHz の投稿を引用：

FYI - Windows 8 DX10/11 is installed by default, and includes most of the DX9 libs, but is missing some stuff. Manually install DX9 to get Portal 2 and Crysis 3 working.
http://www.microsoft.com/en-us/download/details.aspx?id=35

This worked for me. Thanks.

[murla]

Thanks, installing DirectX 9 libs helped as well (Win 8.1) !

[maex]

I already have DX9, I can't even get 10 nor 11. I'm using xp.

[Pyor]

I'm having a similar issue, but when I try to verify game cache, it does nothing.